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水跃情况下动水压力脉动的模拟问题,巳有一系列作者进行了研究,他们在各种比例的模型上做了实验室试验,从而得以按雷诺准则确定压力脉动的模拟下限,并根据弗劳德和斯特罗哈尔相似准则确定模型和原型之间脉动特性数据的换算条件。但是大家知道,模型试验时不可能充分估计到原型条件下所发生的水流掺气和微紊动。鉴于上述情况,为了定量评价水跃情况下水流掺气和微紊动可能对压力脉动的影响,近
Simulations of hydrodynamic pressure pulsations in the event of a water jump have been studied by a series of authors who have performed laboratory tests on various scales of model to determine the lower limit of simulation of pressure pulsations on the basis of the Renault criterion, The similarity criterion between Germany and Strobel determines the conversion conditions for the pulsation characteristic data between the model and the prototype. However, it is well known that it is not possible to adequately predict the aeration and micro-turbulence of the water flowing under the prototype conditions during the model test. In view of the above, in order to quantitatively evaluate the possible influence of air entrainment and micro-turbulence on pressure pulsations in the case of water jets,